bio # 9

What carries a signal from one neuron to the next? An axon A hormone A dendrite A neurotransmitter

A neurotransmitter

Which of the following is a similarity between male and female reproductive systems? They both produce haploid gametes. They both release gametes. They both store gametes. All of the above are similarities between the two systems.

All of the above are similarities between the two systems.

Which of the following forms of contraception is removable? A vasectomy An intrauterine device A tubal ligation None of these

An intrauterine device

When is an unborn child called a fetus? From cleavage to the 9th week of pregnancy From cleavage to birth From the 9th week of pregnancy to birth From conception through birth

From the 9th week of pregnancy to birth

Sound is "heard" when sound waves cause structures inside your ears to physically vibrate. A signal is then sent to your brain where it is interpreted as sound. What type of receptor in the ear is responsible for the sense of hearing? Electromagnetic receptors Thermoreceptors Mechanoreceptors Chemoreceptors

Mechanoreceptors

What are gonads? Organs that produce gametes Tubes that allow sperms and ovules to move Structures that protect the embryo The sites where ovule and sperm meet during reproduction

Organs that produce gametes

What is an action potential? The electric signal used by neurons to transfer information The collection of dendrites that make up a neuron The movement of hormones in your body The potential that your body has to complete a movement

The electric signal used by neurons to transfer information

What is the main role of the peripheral nervous system? To serve as a back up to the central nervous system To transport hormones To convey information to and from the central nervous system To receive information

To convey information to and from the central nervous system

What would happen if the sensory neurons in your hand could not transmit a signal? You could move your fingers but you could not feel something touch them. You could not move your fingers or feel something touching them. You could still feel something touching your fingers and still be able to move them. You could feel something touch your fingers but you could not move them.

You could move your fingers but you could not feel something touch them.

The spinal cord is part of the ________ nervous system. autonomic central peripheral somatic

central

In spermatogenesis, ________. both sperms and ovules are produced haploid sperms are produced diploid gametes are produced diploid sperms are produced

haploid sperms are produced

Where does the ovule meet the sperm that fertilizes it? In the oviduct In the ovary In the vagina In the uterus

in the oviduct

The urethra ________. adds fluids to semen is a tube that conveys both urine and semen is where sperms are produced is a structure where semen is stored

is a tube that conveys both urine and semen

The release of an egg from an ovary is called ________. ovulation gametogenesis oogenesis menstruation

ovulation

Genital herpes is a sexually transmitted disease caused by a ________. protist bacteria fungus virus

virus